Typewriting machine



Dec. 5, 1939. w. F. HELMOND TYPEWRITING MACHINE Original Filed Feb. 12,1932 2 Sheets-Sheet l Dec. 5, 1939. w. F. HELMOND TYPEWRITING MACHINEOriginal Filed Feb. 12, 1932 2 Sheets-Sheet 2 wdE Patented Dec. 5, 1939r 2,182,125

1 UNITED STATES PATENT OFFICE TYPEWRITING MACHINE William F. Helmond,West Hartford, Conn., as-

signor to Underwood Elliott Fisher Company, New York, N. Y., acorporation of Delaware Original application February 12, 1932, SerialNo. 592,454. Divided and this application June 23, 1936, Serial No.86,707

14 Claims. (01. 197-179) This invention relates mainly to key-settabutopermit endwise adjustment of the latter. Each lator-stop mechanismfor typewriting machines. tongue is joined to its arm by a reflex bend,which There is used a rack with a key-set stop which is serves to coverover the open end of the tube, in the form of a square or rectangularmetal and also carries a screw, which bears against the 6 tube, havingcross-slots for the stops cut in its end of the rack, for eflecting fineendwise adtop and bottom sides; each key-settable columnjustment of thelatter. Said tongue is fastened stop being insertible down through thetop and to the front side of the rack, thus avoiding any bottom slots;and a spring-detent being formed tendency of the arrested carriage togive the rack upon the front edge of each stop. a thrust in an up ordown direction, or to raise 1 The rack is mounted upon the rear of theor lower the carriage at either end, or to bind 10 paper-carriage of thetypewriter, and its path of the carriage. travel overlies a set ofdecimal-stops. These Each key-set stop is provided with a top ear,decimal-stops are in the form of upstanding which overhangs the rearside of the rack, and blades, each having a key, whereby the stop mayserves as a stop to prevent excessive downward be thrust up into thepath of a key-set columnmovement of the stop, and to prevent any stop isstop. from being thrust bodily into the tubular rack.

Said decimal-stops are mounted in a bracket These ears overhang the rearside of the rack; which stands in rear of the carriage-escapement andthe integral detents are formed upon the mechanism of the typewriter;and in order to front edges of the stops.

afford accessibility to the carriage-escapement Alongside of the set ofdecimal-stops there is 20 mechanism, for inspection, adjustment andreplaced an additional blade, which may perform pair, it is a feature ofthe invention that the the function of a stop-blade, but which is alsobracket and the set of decimal-stops are made formed with acam-shoulder. During the return detachable, together with thekey-controlled of the carriage, this shoulder is struck by any mechanismwhich is used for setting the columnkey-set stop that is in depressedposition. The 25 stops; a principal portion of said setting mechastoprides up on the cam, and is thereby restored nism being mounted uponsaid detachable brackto normal idle position. This cam-blade may be et,and forming a unit therewith, and extending operated by a stop-returningkey at the end of up from the bracket in rear of the key-set stopthe rowof decimal-keys at the keyboard. Upon rack, with the stop-setting armprojecting over the other side of the set of decimal-stop blades, 30 thetop of said rack. When the lower end of there may be provided anotherextra blade, to the bracket is detached from the base of the mabeoperated by another key, and constituting a chine-frame, said bracketmay be lifted back and part of the stop-settin ec a smoif from themachine, together with its decimal- In operating key-settabulator-mechanism,

stops and its key-controlled stop-setting mechathere is liability that,after the operation of the 35 nism, thus affording access to thecarriage-feedtope t ke a d w ile s d y s st ll held ing mechanism. down,the paper-carriage may become released The stop-setting mechanism isentirely clear of by t a tuati n f any s ap m nt-a tuatin the carriage,and therefore the same unit may key, and may be propelled by its springuntil it is 0 be used with carriages and racks of all lengths. arrestedby striking the stop-setting tooth. This This mounting of thestop-setting mechanism is liable to bend the tooth, or to bend a stop,or is further advantageous in that it is clear of the to bend thestop-setting arm and bind the stoparms which support the stop-rack uponthe carsetting mechanism, or otherwise to injure the riage, includingnot only the arms at the ends of mechanism, SO th ts parts will notbecome the rack, but also a third arm which is provided est ed to norposition. 45 to connect the midway portion of a long rack It is afeature of the present improvements to with the carriage, to affordadequate rack-supp de means for preventing Such accidents. d port. tothis end the stop-setting tooth is mounted Each of the two arms, whichextend rearwardpon a p c c which s pa e of l ed ly from the carriage, isfixed to the ends of the bodily yielding movement in the direction of 50tubular rack for supporting the same. Each the carriage-t s th p narmhas a tongue which is inserted within the carrier may be in the form ofa lever, which is end of the rack, and issecured thereto by a screw.Pulled down by th Stop-Setting y, The shank of the screw passes througha slot ing the tooth on the end of the lever to forcea which extendslongitudinally of the rack, so as stop to de e If new the a age Shouldbe as released by operating an escapement-actuating key, a stop wouldengage said setting-tooth, and would force both the tooth and the leverto slide endwise, or in the direction of the carriagetravel, withouteflecting any damage. The lever is thereafter-drawn back to its normalposition by means of a spring, when the stop-setting key is released.

This application is a division of my pending application Serial No.592,454, filed February 12, 1932 (now Patent No. 2,053,079, datedSeptember 1, 1936).

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective front view of the tabulator-stop setting. andrestoring mechanism, in normal position.

Figure 2 is a sectional elevation, showing the position of the partswhen the carriage is letterspaced while the stop-setting finger is helddepressed.

Figure 3 is a sectional side elevation, showing the restoring slide andblock.

Figure 4 is a perspective view of the parts shown in Figure 3 beforebeing assembled.

Figure 5 is an enlarged plan, showing the stopsetting arm and mounting,together with the retaining spring.

Figure 6 is a sectional elevation, taken from front to rear, of the stopsetting and restoring mechanism, and showing the stop-setting mechanismin operated position.

Fi ure '7 is a view similar to Figure 6, with parts omitted, and showingthe stop-restoring mechanism in operative position.

Figure 8 is a sectional side elevation, taken about centrally of themachine, with parts omitted, and showing the present invention in no malposition.

The depression of keys l0 causes types II to strike rearwardly against arevoluble platen l2 supported for case-shift movement in the platenframel3 that has a carriage l4 supported for letter-feed movement on a frontrail i5 and a rear rail IS.

The carriage is pulled in letter-feeding direction by means of the usualspring band i1 and is fed at letter-space intervals, by operation of thekeys in or space-bar Illa, through the usual escapement-mechanism thatincludes a loose dog l8 and a fixed dog Ida meshing with anescapement-wheel l9 carrying a pinion l9a engaging acarriage-letter-space rack 20.

Fixed at l9b to the ends of the carriage-frame i4 are brackets 2| whichsupport a rack 22. This rack is made of a rectangular tube having openends in which flanges 23 forming the outer ends of the brackets 2| areinserted and are fastened to the front or inner side 24 of the rack bymeans of screws and washers 25. The flanges 23 and the rear portion ofthe brackets are about the same length as the distance between the topand the bottom sides of the rack, so that the flanges just fit into theends of the rack while the brackets 2| adjacent their flanges extendrea'r wardly and are bent at 26 to form vertical plates 21', which actas cover or end plates to conceal the open ends of the tubular rack 22.

The rack 22 is made of different lengths to flt various size carriagesand according to its length may be supported by one or more intermediatebrackets 28 fixed by screws 29 to the carriage frame l4, and havingflanges 30 at its outer end or restoring said stops.

to which the rack 22 is rigidly attached by screws 3|.

The tubular rackis of oblong rectangular cross-section and includesinner side 24 and opposite outer side 32, the top 33 and bottom 34. Thetop and bottom sides have thin slots 35, 36 cut therein at letter-spaceintervals. The slots 36 are directly in a line with the slots 36, so asto receive the column-stops 31 in the form of thin rectangular bladesloo ely fitting in said slots for an easy up-and-do movement whensetting The width of the stops 31 is substantially the same as the widthof the inner face of the front and the rear sides 24 and 32 of the rack22, so that these sides will act as guides for the stops during theirup-anddown movements and will also prevent any excessive forward orrearward play of the stops in the rack 22.

Each stop 3'! has a spring detent 39 formed by cutting a slit 39 nearone side of the stop 31. The detent lies normally slightly to the frontof the stop and has a pair of notches 40, 4| to enable the detent tocooperate with the edge of the upper slots 35 for holding the stops intheir inefiective or effective positions.

The upward movement of a stop 31 is limited by the straight horizontaledge 42 forming the lower part of the notch 4| and catching on the innerface of its upper slot 35 in the rack 22. The downward movement of astop 3'! is limited by a rearward extension 43 at the top of the stop31. This extension overlies the rear side 32 of the rack, so that thedepression of a stop 31 causes the lower edge of extension 43 to engagethe top edge of the racks-rear side 32. The stops, therefore, ifinadvertently given a quick heavy blow, are positively prevented frombeing depressed too far and from being thrust out of their upper slots35.

The stops 3'! when in projected or set position cooperate with adecimal-stop-selecting mechanism that includes tabulating keys 44forming the top row in the keyboard. The depression of any one of thesekeys releases the carriage in any known manner (not shown) and raisesits respective plunger 45 into the path of a projected stop '31 toarrest the released carriage in the selected position. The plungers 45are guided in upper plates 46, 41 and in a lower wall 48 forming part ofa frame 49 having a rear wall 50 and side walls 5! and 52. The frame isdetachably mounted by four screws 53 on the rear plate of themachine-frame 54 and directly in the rear of the escapement-mechanism.

To selectively set the stops 31 from the front of the machine, a novelstop-setting mechanism is provided, and includes a key 55, positionedadJacent and at the right side of the tabulator-keys 44. Thestop-setting key is fixed to the front end of a key-lever 56 pivotallysupported on a shaft 51 carried by escapement-base plate 56 fixed to themachine-frame 54. The key-lever. 66 is guided at its forward end in aslot in the upper portion of the usual key-lever comb-plate 59 and itsrear end is guided in a slot in the wall 49 of the frame 49.

On top of the rear portion .of the key-lever 56 rests the lower end of avertical link 69. This link is mounted inside of the frame 49 and at theright side thereof. The lower end of said link is guided in the sameslot in the wall 49 as the rear part of the key-lever 56. The upper endof said link extends to the rear at 6| and is bent over at right anglesto form fiange 62 to pivotally I connect the link by means of a screw 68to one end of a lever 64 lying in rear and out of the path of theplungers 45 and swingably mounted by screw 65 on the rear wall 58 of theframe 48. The other end of the lever 64 is connected by a link 61 to astop-setting arm 86 supported on the outside of the frame 49 at the rearand above the rack 22. The link 61 is pivotally connected at 68 to oneend of the lever 64 and extends upwardly in rear of the rack 22 througha slot 69 in the plate 41 to be loosely connected at 16 to the outer endof the arm 86 which is rockable about a pivotstud 1| carried by avertical post 12 riveted on the right side of the plate 41 to form avertical extension of the frame 49 in rear of the rack 22.

The post 12 has a slot 18 cut in its upper end through which the stud 1|extends. The end of the arm 66 fits into the slot 13 constraining allmovement of said arm in a single plane and is pivotally mounted on thepost by means of an open end slot 14 in the arm 68 straddling the stud1|. The other end of the arm 86 is bent over at right angles to form atabulator-stop setting finger 15 normally overlying the stops 31 whereit is supported by the link 61 and its fulcrum-pin 1|.

When a tabulator-stop 31 is to be set, the carriage is positioned to thedesired printing point which places a corresponding stop 31 under thesetting finger 15. The stop-setting key 55 is then depressed to rock itskey-lever 56 which raises the link 60 and rocks the lever 64 to pull thelink 61 downwardly, and thereby swings the arm 66 downwardly about itspivot 1| to cause the finger 15 to move in a stop setting pathtransverse to the row of stops 31 to engage and depress the underlyingtabulator-stop 81. This stop 31 will be held in its depressed positionby its spring detent 38, while, upon releasing the stop-setting key 55,a returning spring 16, connected at one end to a fixed plate 11 of theframe 49 and its other end to an ear 18 of the link 60, will return allthe operated parts 15, 66, 61, 64, 60, 56 and 55 of the stop-settingmechanism to their normal positions. The carriage may be then fed inletter-space direction to a position where it is desired to set anothertabulator-stop. The stop corresponding to the position of the carriagewill be under the setting finger 15 and upon depression of thestop-setting key 55 the finger will be pulled down to set said stop. Theoperation of positioning the carriage and setting the stops may berepeated until all of the desired tabulator-stops are in their effectiveor. set positions.

To restore any one of the stops thus set, there is provided a restoringmechanism that includes a stop-restoring key 19 positioned adjacent andat the left side of the tabulator-keys 44 and fixed to the outer end ofa key-lever 80 swingably mounted on the left side of the shaft 51 andguided at the front end in the comb-plate 59 and at the rear end in thewall 48. A stop-restoring slide 8| is mounted in and at the left side ofthe frame 49 and is guided for vertical movement at its upper and lowerends. The sides of the slide 8| at its top portion are beveled at 82,which bevels fit into opposite notches 83 in the top guide-plates 46 and41 and in which the slide 8| is free to move up and down.

The lower end of the slide 8| is guided in the same slot in wall 48 ofthe frame 49 as the stopreleasing lever 80- and rests upon the rear endof said lever 89 to be loosely connected to the operating key 19.

To restore a set stop 81 the carriage is tabulated into position bydepressing the extreme left or decimal-point key which releases thecarriagerack from its escapement-mechanism and permits the band H topull the carriage to the left. The depression of the decimal-pointtabulatorkey also simultaneously raises the extreme left plunger 46 toengage a side of the set tabulatorstop that is to be restored. Althoughthis plunger is located one space to the right of the restoring slide8|, and therefore engages the set stop one letter-space to the right ofthe slide 8|, it will be noted that there occurs the usual extra spacefeeding of the carriage to the left after the decimal-tabulator key isreleased, thereby positioning the set stop over and slightly in rear ofthe restoring slide 8|. This extra feeding is due to the plungerdisengaging the tabulator-stop in returning to normal position while thecarriage-rack re-engages the escapement-mechanism, at which time thespring band |1 will feed the carriage one letter-space distance intaking up the free motion of the loose dog I 8.

The set stop is now in the proper position to be restored and the key 19is depressed to rock its lever 80 and thrust the slide 8| upwardly toengage the set stop and raise the same to its restoring or ineffectiveposition where it will be held by means'of its detent 38. A returnspring 84, fixed at one end to the bracket 11 and at its other end to anear 85 on the slide 8|, returns the operated stop-restoring train 19, 80and 8| to its normal position upon the release of the depressedstop-restoring key.

To assure the slide 8| engaging the set stop, said slide is provided atits upper end with an offset portion or extension 86 forming part of ablock 81. This block is narrower than the slide 8| and fits between theguide-plates 46, 41. The block has a slot 88 cut upwardly from its lowerside to receive the slide 8| which has a cutout 90 to form a pair ofside fingers 9 I, between which the block 81 is set to prevent anypossible rotation and to securely mount the block 81 on the slide 8|,which block and slide are rigidly fixed together by a rivet 89. It willbe noted that since the tabulatlng plunger engages the side face of aset stop, the extra space movement upon release of said plunger bringsthe stop just at the right side of the slide 8| but directly over theextension 86 which will engage and restore the stop by depression of thekey 19 raising the slide 8|.

When it is desired to restore all of the depressed stops, the carriageis first fed to the left to bring all of the stops to the left of therestoring slide 8| The operator then depresses the restoring key 19 andholds it depressed to retain the slide 8| together with the block 81 inraised position while the carriage is suitably returned. This returnmovement of the carriage causes all of the depressed stops to pass overthe block 81 and thereby be returned to their normal ineffectivepositions. This is accomplished by inclining the top portion of theblock 81 at the left side of the slide 8|. This inclined portion forms acam 92 on the block 81 that is engaged by all of the set stops duringthe return movement of the carriage, and as a stop rides up on the camit is forced upwardly to ineffective position in its carrying rack 22when its detent 38 will be effective to hold the stop in its restoredposition.

The stop-setting key 55 is depressed to swing 75 the finger "down in astop setting path transverse to the row of stops about its fulcrum II,to depress the underlying stop 81. It sometimes occurs that while thefinger I5 is in its lowered 5 position, a space-key or any othercarriagefeeding key might inadvertently be operated, thereby causing thecarriage to escape and bring the top portion of the adjacent unset stopagainst a setting finger I5. Heretofore such a feeding movement of thecarriage would jam the adjacent stop against the setting member andunder the strong tension of the carriage-feeding spring II the settingmember would be prevented from returning from normal position after itsoperating key had been released, and the carriage would be jammed untilthe operator moved it in the opposite direction to move the stop awayfrom the setting member and permit said member to return to its normalposition.

30 According to the present invention, the above trouble is eliminatedby slidably or extensibly mounting the stop-setting finger on itssupport. If the carriage is fed while the finger I5 is held depressed,the adjacent stop will abut against the finger, but, since the latter,together with its arm 66, is slidably mounted on the fulcrum through theslot I4, the finger will merely move along with the carriage for theletter-space distance. If the operator now lets go of the stopsettingkey 55, the finger will be released from the adjacent stop in the usualmanner, namely, through the spring I6 restoring the operatedstop-setting train to normal position. The slot 69 through which thelink 61 extends is made long enough to permit said link to swingforwardly together with the arm 66 when the carriage is fed while thefinger I5 is held depressed. According to the present construction, thepull of the carriage-spring drum on the stop which is contacting withthe depressed finger 15 (Figure 2) actually aids in returning saidfinger to its normal position, since the finger is swingably mountedaround the pin II and said pin is positioned above the stops 31 so thatwhen said finger returns to normal position, it is swung upwardly andforwardly away from the stop 31, in which direction the stop tends topush the finger I5.

A spring 93 then pulls the finger I5 and arm 66 back to normal positionwhere the fulcrum pin II will be at the inner or closed end of the slot14 in the arm 66. This spring 93 is mounted at one end on an extensionof the fulcrum-pin (Figure 5) .that is rigidly carried by the post 12.The pin has a groove 94 to permit the end of the spring 93 to fittherein and prevent the possibility of the spring slipping off of thepin. The other end of the spring is secured to a pin 95 rigidly mountedon the arm 68. This pin 95 is utilized for loosely connecting the link61 to the arm 66. The pin extends through a hole in the link 61, andsaid link is retained on said pin by means of the spring 93 fitting in agroove 96 in 65 the pin 95, thereby preventing the spring 93 or the link61 from slipping off of the pin 95. In this manner the spring 93 acts toreturn the arm 66 and finger I5 to normal position when they areinadvertently pulled to the left and 70 also to retain the connectionbetween the link 61 and the arm 66.

To prevent the arm 66 from being accidentally disconnected from itsfucrum-stud II, the slot 69 in the plate 41 is shorter than the slot I4in 75 the arm 66, so that the movement of the arm in letter-feedingdirection is limited by the link 61 abutting the end of its slot 89.

The stop setting and restoring mechanisms with the exception of thekey-levers 58 and 80 are entirely mounted in the rear frame 49. When 5it is desired to gain access to the inside of the machine from the rear,such as for adjusting or otherwise fixing the escapement-mechanism, thefour screws 53 are removed to permit the frame 49 together with thepresent stop setting and 10 restoring mechanisms to be entirely removedfrom the machine. The parts are held in proper position within the frame49 by a rod 91 threaded through slots 98 in the link 60 and slide 8|,which rod also acts at all times to hold all of 15 the parts within theframe in their aligned normal positions. The slots 98 are of suflicientlength to permit the desired vertical movement of their respective partswhen operated by their respective key-levers. 20

The stop-setting finger I5, the stop-restoring slide 8|, 86 and anintermediate stop 31 are all in an aligned vertical position. This isadvantageous as it often occurs that an operator sets a stop and thennotices that the carriage is not 25 in the proper position and the stopshould not have been set. With the construction of the present inventionit is a simple matter to rectify this mistake by merely operating thestop-restoring key to operate the restoring slide and 30 reset the stophaving just been set by the setting finger. The operator may now spacethe carriage to the proper position and operate the stop-setting fingerto set the correct stop.

The present stop setting and restoring mech- 35 anisms being entirelyseparate and in the rear of the machine and out of the path of thecarriage permit the latter to be readily removed from the machine whichis often desired for shipping or repair purposes. 40

The upward movement of the keys and I9 is limited by a plate 99 fixed byscrews I00 to the frame 49 and underlying the rear ends of the levers 56and 80.

The rack 22 carrying the stops 31 is adjust- 45 ably mounted lengthwiseon the carriage I4, to align the stops 31 in proper position withrespect to the tabulator-plungers 45, the stopsetting finger 15 and thestop-restoring slide 8|, 86, by providing slots IOI near the ends of the50 rack 22, and through which the screws 25 extend into the flanges 23of the brackets 2|. The center bracket 28 has slots I02 through whichthe screws 29 extend, so that by loosening the screws 25, 29, the rack22 may be given a fine endwise adjustment by means of an adjustmentscrew I03 mounted in the plate 21 of the bracket 2|. After the desiredadjustment has been made, the rack is rigidly attached to the carriageI4 by tightening the screws 25 and 29 while the adjustment screw islocked in position on the plate 21 by a locking nut I04.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine of the class described, having a frame, thecombination with a paper-carriage traveling in said frame, and a seriesof individually settable and restorable stops carried by said carriageand overhanging the rear side of said frame, of a series of tabulatingkeylevers of the first order extending from front to rear of said frameand substantially below said carriage, and a self-contained structuredetachably supported on the rear of said frame, forming completeco-operative connections between said stops and the key-levers below,said structure including a nest of decimal-stops, a vertical linkoperatively connected at its lower end to one 01. said key-levers, amovable member having a finger, said finger overlying the carriage-stopsto individually engage and by movement of said member to depress anystop on said carriage, said movable member being arranged to otherwiseclear said carriage and stops, operating connections between saidmovable member and said vertical link, and a vertical slide connected atits lower end to another one of said key-levers and projectable upwardlyby said key-lever to engage and restore a set stop on said carriage.

2. In a tabulating mechanism of the class described, the combinationwith a traveling carriage and a series of stops individually settable,of a stop-setting member including a lever, movable to set said stops,extending substantially parallel to and outside the path of travel ofsaid stops, said lever including a transverse finger overlying saidstops and formed to engage said stops individually and movetherebetween, and a mounting for said lever, said lever and mountinghaving a pin-and-slot connection serving as a lever-fulcrum, saidmounting also including resilient means to keep said pin and one end ofthe slot normally in abutment, said slot extending in the direction ofcarriage travel to thereby permit endwise movement of said lever toprevent interlocking of said finger and carriage by inadvertent releaseand movement of the carriage during actuation of said lever.

3. In combination, a carriage, a stop-setter and a stop-restorer opposedto each other in the same plane to act in opposite directions directlyupon a key-set stop, first for setting the stop and then for restoringthe stop without affecting adjacent key-set stops while the carriageremains motionless, and means for maintaining said stoprestorer inoperative position for camming all of the set stops back to normalpositions at a run of the carriage, said stop-restorer having astoprestoring cam effective during said carriage run, said cam beingarranged to avoid restoring said adjacent stops when the stop-restoreris actuated while the carriage is motionless.

4. In a tabulating mechanism, the combination with a letter-feedingcarriage and a series of individually-settable stops for said carriage,of a row of key-operated blades, all but one of said blades serving as acomplement of denominational stops individually operable to engage a setcarriage-stop, said one blade being at the end of said row and adjoiningthe denominational-stop blade of lowest denomination and serving whilethe carriage is stationary to engage and selectively restore any setstop that has been tabulated to said denominational-stop blade of lowestdenomination, and a key for operating said restorer to restore anypresented stop, without moving the carriage, said restorer-blade havingat its stop-engaging end a cam effective, when said restorer-bladeis inactuated position, to cam and thereby also restore the set stops by arun of the carriage when more than one stop is to be restored.

5. In a tabulating mechanism, the combination with a letter-feedingcarriage, a series of individually-settable carriage stops, andkey-operated means for setting said stops, of a pair of key-operatedblades, one blade serving as a counterstop to engage any setcarriage-stop,

the other blade serving as a restorer while the carriage is stationary,to selectively engage and restore any set stop on said carriage, saidblades being mounted side by side, whereby the counterstop-blade locatesthe carriage by means of a set stop, and thereby causes said set stop tobe presented individually to said restoring blade, to be restoredindividually thereby without movement of the carriage, the stop-engagingends of said blades working in guiding means disposed close to the pathof the carriage-arresting ends of the set stops, the restoring blade,like the counterstop-blade, being normally retracted so that itsstop-engaging end is drawn sufficiently into said guiding means to clearsaid stop path.

6. In a tabulating mechanism, the combination with a letter-feedingcarriage, a series of individually-settable carriage-stops, andkey-operated means for setting said stops, of a pair of key-operatedblades, one blade serving as a counterstop to engage any setcarriage-stop, the other blade serving as a restorer while the carriageis stationary to selectively engage and restore any set stop on saidcarriage, said blades being mounted side by side, whereby thecounterstop blade locates the carriage by means of a set stop, andthereby causes said set stop to be presented individually to saidrestoring blade, to be restored individually thereby without movement ofthe carriage, the stop-engaging ends of said blades working in guidingmeans disposed close to the path of the carriage-arresting ends of theset stops, the restoring blade, like the counter-stop blade, beingnormally retracted so that its stop-engaging end is drawn suflicientlyinto said guiding means to clear said stop path, said restoring bladehaving at its stop-engaging end a cam effective when said restoringblade is in actuated position to cam and thereby also restore the setstops by a run of the carriage when more than one stop is to berestored, said cam and guiding means being arranged so that in theretracted position of the restoring blade its cam is retractedsubstantially within said guiding means.

7. In a carriage-tabulating mechanism employing a series of key-settablestops on the carriage; a stop-setting, stop-restoring, and counterstoporganization including an upstanding housing under the path of saidstops, three upstanding, movable and laterally distributed bladesmounted within said housing and operatively connectible at their lowerends to key-levers, the middle or second blade being operable as acounterstop for said settable stops, and a stop-setting finger movablysupported on said housing, and operating connections extending from saidfinger to the third blade within said housing, the first blade closelyadjoining the counterstop-blade and effective while the carriage isstationary to engage and restore individually any set stop that has beentabulated to the counter-stop-blade.

8. A stop-restorer for moving a slidably mounted carriage-stop fromoperative position to inoperative position and which is mounted on theframe of a typewriter including a plunger block mounted forreciprocatory movement in a plane transverse to the path of movement ofthe carriage, said block having two stop-engaging surfaces, one surfacebeing substantially transverse to the path of movement of the restorerand having a width less than that of a letterspace and the other surfacebeing inclined both to the path of movement of the carriage and to thepath of movement of the block.

9. A stop-restorer 'for moving a slidably mounted carriage-stop fromoperative position to inoperative position and which is mounted on theframe of a typewriter including a plunger block mounted forreciprocatory movement in a plane transverse to the path of movement ofthe carriage, said block having two stop-engaging surfaces, one surfacebeing substantially transverse to the path of movement of the restorerand having a widthless than that of a letterspace and the other surfacebeing inclined both to the path of movement of the carriage and to thepath of movement of the block, the two surfaces being of such size andform that the transverse surface of the block moves one carriagestoponly.

10. In combination, a stop-restorer for moving a slidably mountedcarriage-stop from operative position to inoperative position and whichis mounted on the frame of a typewriter, including a plunger blockmounted for reciprocatory movement in a plane transverse to the path ofmovement of the carriage, said block having two stopengaging surfaces,one surface being substantially transverse to the path of movement ofthe restorer and having a width less than that of a letter-space and theother surface being inclined both to the path of movement of thecarriage and to the path of movement of the block, and means foractuating the restorer.

11. In combination, a stop-restorer for moving a slidably mountedcarriage-stop from operative position to inoperative position and whichis mounted on the frame of a typewriter, including a plunger blockmounted for reciprocatory movement in a plane transverse to the path ofmovement of the carriage, said block having two stopengaging surfaces,one surface being substantially transverse to the path of movement ofthe restorer and having a width less than that of a letter-space and theother surface being inclined both to the path of movement of thecarriage and to the path of movement of the block, and key-actuatedmeans for actuating the restorer.

12. A stop-restorer for moving a slidably mounted carriage-stop fromoperative position to inoperative position and which is mounted on theframe of a typewriter, including a plunger block mounted forreciprocatory movement in a aisaiae verse to the path of movement of therestorer,

and having a width less than that of a letterspace, whereby the blockmay move one carriagestop only to inoperative position, and the othersurface being inclined both to the path of movement of the carriage andto the path of movement of the block, whereby a movement of'the carriagemay restore a plurality of carriage-stops to inoperative position.

13. In a key-operated tabulating mechanism, the combination with atraveling carriage, a row of letter-spaced key-settable stops on saidcarriage and'anest of tabulating blades operatively mounted within acasing and underlying said row of stops, of a stop-setting deviceincluding an arm disposed alongside said row of stops and having afinger extending transversely therefrom to overlie one of said stops, asupport on the tabulating-blade casing, presenting'a pivotal and endwisemovable mounting for said arm, a spring yieldably retaining said am innormal position, a link articulated to said arm adjacent the free endthereof, and means actuating said link including one of said blades;whereby said finger may move along the path of carriage travel tothereby permit release of said finger to'normal position should samebecome engaged with the side of a stop.

14. In a key-operated tabulating mechanism, the combination with atraveling carriage and a row of upstanding key-settable stops on saidcarriage, of a nest of upstanding blades operatively mounted beneathsaid row of stops, a stop-setting device including an arm disposedalongside of said row of stops and having a finger extendingtransversely therefrom to overlie a stop, all but the two outermost saidblades presenting a complement of counter-stops operable individually toengage a set carriage-stop, one of the outer blades serving to restore aset stop and underlying said finger, the other outer blade presenting anactuator for said stop-setting arm, said actuator including a leverarticulated to the latter said outer blade and said arm.

WILLIAML F. HELMOND.

